摘要
本文分析了中国首次南大洋考察的部分资料,探讨了南极马克斯韦尔湾沉积有机质的某些早期成岩特征。文章认为:研究区域沉积有机质的早期成岩分布特征主要受沉降时间的制约,这种制约关系迈进而影响了有机质的剖面变化形式。有机质固相分解量与液相分布量近乎平行的演化特征实际上反映了有机质早期成岩的降解速率和结构转换。有机质的早期成岩过程中伴随着生源碳的沉积,这也反映了本区有机质在早期成岩演化过程中的部分归宿。
Some characteristics in the process of early diagenesis of sedimentary organic matters are discussed, based on the information obtained from the First Antarctic Exploration of China. The authors consider that the early diagenesis distribution of sedimentary organic matters in the research area is dominated by the deposited time. Furthermore, this dominant relation affects the profile changes of sedimentary organic matters. And the changes of dissolved amount of organic matters in solid phase are in almost parallel to its concentration in liquid, which actually demonstrates the degradation rate and the structure alternation of organic matters during the early diagenesis. The process of early diagenesis is also accompanied with the deposition of biogenic carbon, which reflects a fate of organic matters in the research area in the early diagenesis.
出处
《东海海洋》
1989年第1期71-78,共8页
Donghai Marine Science
